When you install/unistall driver of WinCDEmu Portable in the same session working perfect. For example simpy open software/install driver and before close software/uninstall driver.
But if you need to install again in the same session the pcs need to reboot. The error message is:

The specified service has been marked for deletion

I have test on 4 Pcs and the problem is the same, so i find a simple solution:
Start — cmd — driverquery

With this comman the driver list must be “refresh” and we can fine install driver again without reboot.
Hope someone needs